Year	Percent
1983-01-01	0.037000000000000005
1984-01-01	0.037000000000000005
1985-01-01	0.136999999999999980
1986-01-01	0.069000000000000000
1987-01-01	0.069000000000000000
1988-01-01	0.069000000000000000
1989-01-01	0.055999999999999994
1990-01-01	1.173440000000000000
1991-01-01	0.667214000000000100
1992-01-01	0.928495999999999900
1993-01-01	6.873060000000001000
1994-01-01	6.873060000000001000
1995-01-01	1.060470000000000000
1996-01-01	1.716530000000000000
1997-01-01	2.463180000000000000
1998-01-01	3.195610000000000000
1999-01-01	4.045460000000000000
2000-01-01	3.386350000000000000
2001-01-01	2.829250000000000000
2002-01-01	2.998800000000000000
2003-01-01	4.452640000000000000
2004-01-01	2.285100000000000000
2005-01-01	1.741110000000000000
2006-01-01	1.914009999999999800
2007-01-01	2.774620000000000000
2008-01-01	1.973480000000000000
2009-01-01	2.777550000000000000
2010-01-01	7.344060000000001000
2011-01-01	4.774350000000000000
2012-01-01	5.991560000000000000
2013-01-01	7.737839999999999000
2014-01-01	8.041630000000000000
2015-01-01	10.992800000000000000
2016-01-01	28.822000000000000000